LZEXE

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File Format
Name LZEXE
Ontology
Released 1989

LZEXE is an executable compression utility, developed by Fabrice Bellard. It compresses DOS .EXE files.

Contents

Identification

LZEXE-compressed files normally have ASCII "LZ09" or "LZ91" at offset 28.

As with most compressed executable formats, more-robust identification is possible, by looking for the characteristic decompression code.

Software

Compression software

  • LZEXE
  • "LZEXE v1.00a" by IS2 France Diffusion. Seems to be functionally identical to LZEXE 0.91.

Static decompression software

  • UNLZEXE - A widely-distributed open source utility that does static decompression of LZEXE-compressed executables. Originally by Mitugu Kurizono (Kou). Versions "0.6" and above include patches by other authors, and might be unofficial.
  • mz-explode
  • Deark (with -m lzexe option)
  • Rizzle

Dynamic decompression software

  • UNP - An example of a dynamic decompression utility for DOS

Protectors

(utilities that modify a compressed file to make it more difficult to identify and/or decompress)

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